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Finding the Fourth Proportional to 162,014.20, 242,915.70 and 145,425.40

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Solution

The fourth proportional to 162,014.20, 242,915.70 and 145,425.40 is: 218,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,014.20 : 242,915.70 = 145,425.40 : x
  2. Step 2: Convert to fraction form
    162,014.20/242,915.70 = 145,425.40/x
  3. Step 3: Cross multiply
    162,014.20x = 242,915.70 × 145,425.40
  4. Step 4: Simplify right side
    162,014.20x = 35,326,112,838.78
  5. Step 5: Solve for x
    x = 35,326,112,838.78/162,014.20
  6. Step 6: Final answer
    x = 218,043.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.